<script>

function go()
{
cos tam
}

function close()
{
cos tam
}

</script>

<img src='images.jpg' gdynajadenatenobrazek='go()' gdykursorwyjedziepozaobrazek='close()'>

<script>

function inner()
{
document.getElementById('window').innerHTML = "1";
}

function noinner()
{
document.getElementById('window').innerHTML = "&nbsp;";
}

</script>

<div id='window'>asd</div>

<img src='asd.PNG' style='cursor: pointer;' onmouseover='inner()' onmouseout='noinner()'>